For the past several weeks, we've experienced the same repeating weather pattern: humidity builds early in the week, a cold front passes through the area Thursday into Friday with the threat of storms, and then drier, more pleasant air arrives in time for the weekend. This week will follow the same pattern except afternoon storms will be in the picture starting today and confidence in the arrival of drier air is a bit shaky.
TodayVery warm and humid. PM Storms?
A cold front will be stalled out to our northwest and moist southwesterly flow will juice up the airmass. Expect partly cloudy skies with a 1/3 chance of storms in the afternoon and evening, with highs in the low 90s. The humidity will make it feel like the mid 90s. Overnight, it will be partly cloudy and muggy with lows 68-72.
The Upcoming Week at a Glance
Warmest Days: Today and tomorrow, 92.
Coolest Day: Saturday, 82.
Rain Chances: Today (35%), Tuesday and Wednesday (30%), Thursday (40%), Friday (30%), the weekend (20%)
Dry Days: Best chance over the weekend
The Week's Wild Cards: Will scattered afternoon/evening storms put a dent in the drought? Will a wave form along a stalled frontal boundary and bring any rain to the region over the weekend or will high pressure push the front offshore?
Climatological Average High/Low: 89/70
TuesdaySeasonably warm, humid. PM storms?
Tomorrow will be close to a carbon copy of today. It will be uncomfortably sticky with the chance of a storm in the afternoon or evening as the stalled out front continues to serve as a focusing mechanism for convection. Expect highs from 89-93. Overnight, it will be muggy, with lows not getting below 70 except the coolest suburbs where high 60s are possible.
WednesdayStill sultry with PM Storm threat.
See Monday and Tuesday. The forecast is no different. Another humid day with a 30% or so chance of PM storms and highs around 90. Overnight, the air conditioners won't get much of a break as low temperatures range from 69-74 (suburbs-city).
ThursdayLast day of heat and humidity? Storms a possibility.
A cold front will approach from the northwest but the very warm and humid air will hold tight for at least one more day. The storm threat (40% chance) may be a bitter higher than the previous several days, but not a sure thing. High temperatures will again be around 90.
FridaySlow clearing -- lingering showers/storms?
The cold front may take its sweet time clearing the area (if it does so) so clouds may stick around into Friday afternoon along with the threat of showers and storms (30% chance). Humidity levels will probably drop off gradually but that's contingent on the front's progress. High temperatures will likely be in the mid to upper 80s.
The WeekendCooler and drier.
A big area of cool Canadian high pressure will attempt to build southeastward pushing the cold front offshore. It's unclear if it will push far enough south and east to bring us pleasantly dry and cool conditions over the weekend. I think it will and that we'll have partly to mostly sunny skies with highs in the low to mid 80s. However, there's some possibility the refreshing air won't make it here, the cold front (mentioned in Thursday and Friday's forecast) won't clear the region and we'll be left with muggy conditions and the chance of storms. We'll keep you posted on the prognosis for the weekend throughout the week...